MESON Chess Problem Database

Problem Display
PID: 159573 (1n6/bBN5/P3R3/p1k1p3/P1p1P3/8/1Qn5/6K1 w - - 0 1)

Amirov, Talip Khasanovich

Sachove umeni (Ceskoslovensky sach), 1964

1n6/bBN5/P3R3/p1k1p3/P1p1P3/8/1Qn5/6K1

#2

8 + 7

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bb6
      • 2.Qxb6#
    • 1...Sb4
      • 2.Qf2#
    • 1...Sd4
      • 2.Qa3#
    • 1...Sxa6
      • 2.Sxa6#
      • 2.Rc6#
    • 1...Sc6
      • 2.Rxc6#
    • 1...Sd7
      • 2.Rc6#
    • 1...c3
      • 2.Qxc3#
  • Tries
    • 1.Sd5?
      • 1...Sxa6
        • 2.Rc6#
      • 1...c3
        • 2.Qxc3#
      • 1...Sa1
        • 2.Qf2#
      • 1...Bb6
        • 2.Qxb6#
      • 1...Se1
        • 2.Qf2#
      • 1...Sa3
        • 2.Qf2#
      • 1...Sb4
        • 2.Qf2#
      • 1...Sd4
        • 2.Qa3#
      • 1...Sc6
        • 2.Rxc6#
      • 1...Sd7
        • 2.Rc6#
      • 1...Se3!
    • 1.Se8?
      • threat
        • 2.Rxe5#
      • 1...c3
        • 2.Qxc3#
      • 1...Sb4
        • 2.Qf2#
      • 1...Sc6
        • 2.Rxc6#
      • 1...Sd7
        • 2.Rc6#
      • 1...Se3!
    • 1.Qa3+?
      • 1...Kd4
        • 2.Sb5#
        • 2.Rd6#
      • 1...Sb4
        • 2.Qe3#
      • 1...Sxa3!
  • Keys
    • 1.Sb5!
      • 1...Sxa6
        • 2.Rc6#
      • 1...Sc6
        • 2.Rxc6#
      • 1...c3
        • 2.Qxc3#
      • 1...Sa1
        • 2.Qa3#
      • 1...Bb6
        • 2.Rxe5#
      • 1...Se1
        • 2.Qa3#
      • 1...Sa3
        • 2.Qxa3#
      • 1...Se3
        • 2.Qa3#
      • 1...Sb4
        • 2.Qf2#
      • 1...Sd4
        • 2.Qa3#
      • 1...Sd7
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(f);N_GUARD::QAB1(B),XB(f)
    • S(a);OGATE,SBLOCK::QAB(B)
    • S(a);N_GUARD,SBLOCK::QAB(B)
    • S(g);N_GUARD::R1(F),XS(g)
    • S(g);N_GUARD::R1(F)
    • P(b);OGATEB::QAR2(B),XP(b)
  • Tries
    • Try
      • S(H);
      • Vars
        • S(g);N_GUARD,XP(E)::R1(F)
        • P(b);OGATEB::QAR2(B),XP(b)
        • S(a);OGATE::QAB(B)
        • B(f);N_GUARD::QAB1(B),XB(f)
        • S(a);N_GUARD,SBLOCK::QAB(B)
        • S(g);N_GUARD::R1(F),XS(g)
        • S(g);N_GUARD::R1(F)
      • Refutation
        • S(a);
    • Try
      • S(H);
      • Threat
        • R(F),XP(e)
      • Vars
        • P(b);OGATEB::QAR2(B),XP(b)
        • S(a);OGATE,SBLOCK::QAB(B)
        • S(g);N_GUARD::R1(F),XS(g)
        • S(g);N_GUARD::R1(F)
      • Refutation
        • S(a);
    • Try
      • Q(B);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a),SBLOCK::QAB(B)
      • Refutation
        • S(a);XQ(B)
  • Actual
    • S(H);
    • Vars
      • S(g);N_GUARD,XP(E)::R1(F)
      • S(g);N_GUARD::R1(F),XS(g)
      • P(b);OGATEB::QAR2(B),XP(b)
      • S(a);N_GUARD::QAB(B)
      • B(f);SBLOCK::R(F),XP(e)
      • S(a);N_GUARD::QAB(B),XS(a)
      • S(a);OGATE,SBLOCK::QAB(B)
      • S(g);N_GUARD::R1(F)
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